3663946 has 32 divisors (see below), whose sum is σ = 6749568. Its totient is φ = 1467840.

The previous prime is 3663929. The next prime is 3663949. The reversal of 3663946 is 6493663.

It is not an unprimeable number, because it can be changed into a prime (3663949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6300 + ... + 6856.

It is an arithmetic number, because the mean of its divisors is an integer number (210924).

Almost surely, 2^3663946 is an apocalyptic number.

3663946 is a deficient number, since it is larger than the sum of its proper divisors (3085622).

3663946 is a wasteful number, since it uses less digits than its factorization.

3663946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606.

The product of its digits is 69984, while the sum is 37.

The square root of 3663946 is about 1914.1436727686. The cubic root of 3663946 is about 154.1640181998.

The spelling of 3663946 in words is "three million, six hundred sixty-three thousand, nine hundred forty-six".